diff --git a/README.md b/README.md
index 10e7f96..86ea239 100644
--- a/README.md
+++ b/README.md
@@ -1172,7 +1172,7 @@ Iterable Duck Types
-------------------
### Iterable
-* **Only required method for iterable is iter(). It should return an iterator of its contents.**
+* **Only required method is iter(). It should return an iterator of its contents.**
* **Contains() automatically works on any object that has iter() defined.**
```python
class MyIterable:
diff --git a/index.html b/index.html
index 220de28..1f80ea9 100644
--- a/index.html
+++ b/index.html
@@ -1087,7 +1087,7 @@ con = sqlite3.connect('<path>'); #Iterable Duck Types
Iterable
-- Only required method for iterable is iter(). It should return an iterator of its contents.
+- Only required method is iter(). It should return an iterator of its contents.
- Contains() automatically works on any object that has iter() defined.
class MyIterable: